Enabling RSS Feeds to Your Blog
Google Chrome users can use “ https://chrome.google.com/webstore/detail/rss-subscription-extensio/nlbjncdgjeocebhnmkbbbdekmmmcbfjdextension” , while those who favor Firefox can use “https://addons.mozilla.org/en-US/firefox/addon/rss-icon-in-awesombar/?src=search” to add one-click subscriptions to websites.
This will Add a RSS icon
Open Your Blog Hompage i.e. Username.github.io
Click on RSS icon In the Address Bar.
This will Open a New page “ http://Username.github.io/atom.xml ”
The generated link in Address Bar is Your RSS feed URL.